I buy from skoal on taobao. its like chinese ebay.
Below is the link for the girl's shop i order from. She is really nice and knows more about smokeless tobacco than any girl i have ever met. I ALWAYS order from her. Plus she is super hot.
here is her shops address
Ordering thru toabao is the safest way (if you dont have a toabao account have a chinese friend order for you). Otherwise I can testify she is trust-able. I order from her often
also shipping she ships to shanghai and if you order before six it usually arrives the next day.. super fast. Its like 12 rmb for over night shipping